The heart shape, called a cardioid, is common in nature.

心，称为心，自然界中很常见。

This  largest cardioid section includes the values of c so that the process eventually converges  to some limit.

这个最大的心包括 c 的值，以便该过程最终收敛到某个极。

Yet again, asking a question where  we tweak a parameter for one of these functions yields this iconic cardioid and bubbles shape.

再一次，提出一个问题，我们调整这些函数之一的参数，会产生这种标志性的心和气泡状。

And then if that's not enough of a challenge, try using the result that you find to show that  this condition corresponds to the main cardioid shape of the Mandelbrot set.

然后， 如果这还不够具有挑战性，请尝试使用您找到的结果来证明这种情况对应于曼德布洛特组的主要心状。